ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00552.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

SamenvattingBij de optische waarneming van sterren uit een satelliet is het belangrijk voor het richtmechanisme te weten wat de verdeling van de helderheid van de helderste ster en van het verschil in helderheid van de helderste en op een na helderste is op de verzameling van alle mogelijke te kiezen gezichtsveldjes van de kijker.Het model is een Poisson‐proces met “tijds” afhankelijke parameter. Een monotone transformatie voert dit proces over in een tijdsonafhankelijk proces, waarna toepassing van bekende eigenschappen tot de oplossing leidt.Een dusdanige transformatie lijkt ook voor andere tijdsafhankelijke processen een nuttig middel om een oplossing te verkr

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00553.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

SummaryIn statistical analysis and operational research many techniques are being applied, which are based upon the fact that the phenomenon under consideration has a distribution, which is approximately normal. This distribution‐type has got a number of very nice properties and a constant pattern, so that “normal” phenomenona can be predicted. In case of non‐normal, but deviated or skew distributions, analysis and forecasting become much more complicated. In this article a method has been described in which some non‐normal variables can be transformed into normal ones, so that techniques based on normal distributions ma

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00554.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

SamenvattingDe beide wetten van de grote aantallen (de zwakke en de sterke) vormen een centraal punt van de kansrekening. In het onderstaande wordt op eenvoudige wijze aangetoond, dat zij ook gelden voor steekproeven uit verdelingen met oneindige verwachting. Een minder eenvoudig bewijs is te vinden in M. LOÈVE, Probability Theory, Princeton 1963.Dehiergebruikte bewijsmethode werddeschrijver aanbevolen door dr. J. FABIUS

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00555.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

SummaryA rather long time has elapsed since the predictions of the Central Planning Bureau were considered critically. It therefore seemed highly desirable to make a new study on forecasts and realization. The present article summarizes very briefly some conclusions from such a study.An important statistic in this context is the inequality coefficient, which presents a numerical measure of predictive accuracy. It is easily derived from the difference between forecast and realization and it may refer to one variable, to a group of variables or to each annual Central Economic Plan as a whole. It enables to draw valuable conclusions about the predictive work done by the Bureau in the past. Generally a satisfactory progress in the results is found, but on the other hand there remain some weak points which need improvement. Given the limited scope of this lecture reference may be made to the more elaborate study of the whole problem, published in Monograph No. 10 of the Central Planning Bureau, entitled: “Forecasts and realization. The forecasts by the Netherlands Central Planning Bureau, 1953–19

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00556.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

SummaryDetermining the optimal number of staff in a department using a method based on costs.How many men do you appoint in a department of a firm?This number can be determined in an optimal way, if the following data are known:‐ The number of men required per unit of time (may be given as a stochastic quantity).‐ The mean probability of absence per man in the department (due to illness, holidays etc.).‐ Wages per man.‐ Costs (proceeds), if in one unit of time there are less (more) men available than required.Generally the solution will be obtained by an iterative method. However, when the parameters show a certain behaviour it is possible to find the optimum solution by analytical and graphica

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00557.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00558.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY

摘要:

Book reviewed in this article:More … through quality, J. VAN ETTINGER/J. SITTIGInleiding tot de Statistiek, Deel I, H. RIJKEN VAN OLSTVraagstukken over waarschjjnLjjkheidsrekening, P. J‐ A. KANTERSCyfers in Ujnen, B. VAN DER MEER en G. S. E. MANDEMALinear programming, D. B. YUDIN, E. G. GOL'STEINMathematical Theories of traffic flow, F. A. HAIGHTSchattingsfunkties van storingen in economische relaties, J. KOERTSWaarschynlgkheid en statistiek, H. FREUDENTHALThe Design of Experiments, R. A. FISHERInleiding in de Wiskundige Statistiek, J. MUILWUKDe invloed van tramportkosten, heffingen en restituties op handelsstromen, G. HAMMING, W. HORN, H. NEUDECKER en J. NUHUISQuantitative decision procedures in management and economics, deterministic theory and applications, CHARLES R. CARR and CHARLES W. HOWEProgress in Operations Research, volume II, edited by DAVID B. HERTZ and ROGER T. EDDISONMathematical Methods in Reliability Engineering, N. H. ROBERTSSystematische Datenverarbeitung bei der Auswertung von Versuchs‐ und Beobachtungs‐ergebnissen, A. ADAMCumulative Sum Techniques, R. H. WOODWARD and P. L. GOLDSMITHElementary Statistics, (2e druk), PAUL G. HOELPrinciples of Medical Statistics, A. BRADFORD HILLIntroduction to the theory of statistics, A. M. MOOD and F. A. GRAYBILLMatrix algebra for the biological sciences, (including applications in statistics), S. R. SEARLEA Dictionary of Statistical Terms, M. G. KENDALL and W. R.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1967.tb00559.x

出版商:Blackwell Publishing Ltd    

年代:1967

数据来源: WILEY